@Test
public void getTestDb() throws Exception {
Iterable<String> results;
GiraphConfiguration conf = new GiraphConfiguration();
GIRAPH_GORA_DATASTORE_CLASS.set(conf, "org.apache.gora.memory.store.MemStore");
GIRAPH_GORA_KEYS_FACTORY_CLASS.set(conf, "org.apache.giraph.io.gora.utils.DefaultKeyFactory");
GIRAPH_GORA_KEY_CLASS.set(conf, "java.lang.String");
GIRAPH_GORA_PERSISTENT_CLASS.set(conf, "org.apache.giraph.io.gora.generated.GEdge");
GIRAPH_GORA_START_KEY.set(conf, "1");
GIRAPH_GORA_END_KEY.set(conf, "4");
conf.set(
"io.serializations",
"org.apache.hadoop.io.serializer.WritableSerialization,"
+ "org.apache.hadoop.io.serializer.JavaSerialization");
conf.setComputationClass(EmptyComputation.class);
conf.setEdgeInputFormatClass(GoraTestEdgeInputFormat.class);
conf.setVertexOutputFormatClass(IdWithValueTextOutputFormat.class);
results = InternalVertexRunner.run(conf, new String[0], new String[0]);
Assert.assertNotNull(results);
Assert.assertEquals(3, ((ArrayList<?>) results).size());
if (results instanceof Collection<?> & (((Collection<?>) results).size() == 2)) {
Assert.assertEquals("33\t0.0", ((ArrayList<?>) results).get(0).toString());
Assert.assertEquals("22\t0.0", ((ArrayList<?>) results).get(1).toString());
Assert.assertEquals("11\t0.0", ((ArrayList<?>) results).get(2).toString());
}
}
@Test
public void getEmptyDb() throws Exception {
Iterable<String> results;
Iterator<String> result;
GiraphConfiguration conf = new GiraphConfiguration();
GIRAPH_GORA_DATASTORE_CLASS.set(conf, "org.apache.gora.memory.store.MemStore");
GIRAPH_GORA_KEYS_FACTORY_CLASS.set(conf, "org.apache.giraph.io.gora.utils.DefaultKeyFactory");
GIRAPH_GORA_KEY_CLASS.set(conf, "java.lang.String");
GIRAPH_GORA_PERSISTENT_CLASS.set(conf, "org.apache.giraph.io.gora.generated.GEdge");
GIRAPH_GORA_START_KEY.set(conf, "1");
GIRAPH_GORA_END_KEY.set(conf, "3");
conf.set(
"io.serializations",
"org.apache.hadoop.io.serializer.WritableSerialization,"
+ "org.apache.hadoop.io.serializer.JavaSerialization");
conf.setComputationClass(EmptyComputation.class);
conf.setEdgeInputFormatClass(GoraGEdgeEdgeInputFormat.class);
results = InternalVertexRunner.run(conf, new String[0], new String[0]);
Assert.assertNotNull(results);
result = results.iterator();
Assert.assertFalse(result.hasNext());
}
@Test
public void testHostRank() throws Exception {
if (System.getProperty("prop.mapred.job.tracker") != null) {
if (LOG.isInfoEnabled())
LOG.info("testHBaseInputOutput: Ignore this test if not local mode.");
return;
}
File jarTest = new File(System.getProperty("prop.jarLocation"));
if (!jarTest.exists()) {
fail(
"Could not find Giraph jar at "
+ "location specified by 'prop.jarLocation'. "
+ "Make sure you built the main Giraph artifact?.");
}
MiniHBaseCluster cluster = null;
MiniZooKeeperCluster zkCluster = null;
FileSystem fs = null;
try {
// using the restart method allows us to avoid having the hbase
// root directory overwritten by /home/$username
zkCluster = testUtil.startMiniZKCluster();
testUtil.restartHBaseCluster(2);
cluster = testUtil.getMiniHBaseCluster();
final byte[] OL_BYTES = Bytes.toBytes("ol");
final byte[] S_BYTES = Bytes.toBytes("s");
final byte[] METADATA_BYTES = Bytes.toBytes("mtdt");
final byte[] HR_BYTES = Bytes.toBytes("_hr_");
final byte[] TAB = Bytes.toBytes(TABLE_NAME);
Configuration conf = cluster.getConfiguration();
HTableDescriptor desc = new HTableDescriptor(TAB);
desc.addFamily(new HColumnDescriptor(OL_BYTES));
desc.addFamily(new HColumnDescriptor(S_BYTES));
desc.addFamily(new HColumnDescriptor(METADATA_BYTES));
HBaseAdmin hbaseAdmin = new HBaseAdmin(conf);
if (hbaseAdmin.isTableAvailable(TABLE_NAME)) {
hbaseAdmin.disableTable(TABLE_NAME);
hbaseAdmin.deleteTable(TABLE_NAME);
}
hbaseAdmin.createTable(desc);
/**
* Enter the initial data (a,b), (b,c), (a,c) a = 1.0 - google b = 1.0 - yahoo c = 1.0 - bing
*/
HTable table = new HTable(conf, TABLE_NAME);
Put p1 = new Put(Bytes.toBytes("com.google.www"));
p1.add(OL_BYTES, Bytes.toBytes("www.yahoo.com"), Bytes.toBytes("ab"));
Put p2 = new Put(Bytes.toBytes("com.google.www"));
p2.add(OL_BYTES, Bytes.toBytes("www.bing.com"), Bytes.toBytes("ac"));
p2.add(OL_BYTES, Bytes.toBytes("www.bing.com"), Bytes.toBytes("invalid1"));
p2.add(OL_BYTES, Bytes.toBytes("www.google.com"), Bytes.toBytes("invalid2"));
Put p3 = new Put(Bytes.toBytes("com.yahoo.www"));
p3.add(OL_BYTES, Bytes.toBytes("www.bing.com"), Bytes.toBytes("bc"));
// p3.add(OL_BYTES, Bytes.toBytes(""), Bytes.toBytes("invalid4"));
Put p4 = new Put(Bytes.toBytes("com.bing.www"));
// TODO: Handle below case. use apache isValid method.
p4.add(OL_BYTES, Bytes.toBytes("http://invalidurl"), Bytes.toBytes("invalid5"));
p4.add(S_BYTES, S_BYTES, Bytes.toBytes(10.0d));
Put p5 = new Put(Bytes.toBytes("dummy"));
p5.add(S_BYTES, S_BYTES, Bytes.toBytes(10.0d));
table.put(p1);
table.put(p2);
table.put(p3);
table.put(p4);
table.put(p5);
// Set Giraph configuration
// now operate over HBase using Vertex I/O formats
conf.set(TableInputFormat.INPUT_TABLE, TABLE_NAME);
conf.set(TableOutputFormat.OUTPUT_TABLE, TABLE_NAME);
// Start the giraph job
GiraphJob giraphJob = new GiraphJob(conf, BspCase.getCallingMethodName());
GiraphConfiguration giraphConf = giraphJob.getConfiguration();
giraphConf.setZooKeeperConfiguration(cluster.getMaster().getZooKeeper().getQuorum());
setupConfiguration(giraphJob);
giraphConf.setComputationClass(LinkRankComputation.class);
giraphConf.setMasterComputeClass(LinkRankVertexMasterCompute.class);
giraphConf.setOutEdgesClass(ByteArrayEdges.class);
giraphConf.setVertexInputFormatClass(Nutch2HostInputFormat.class);
giraphConf.setVertexOutputFormatClass(Nutch2HostOutputFormat.class);
giraphConf.setInt("giraph.linkRank.superstepCount", 10);
giraphConf.setInt("giraph.linkRank.scale", 10);
giraphConf.set("giraph.linkRank.family", "mtdt");
giraphConf.set("giraph.linkRank.qualifier", "_hr_");
giraphConf.setVertexInputFilterClass(HostRankVertexFilter.class);
assertTrue(giraphJob.run(true));
if (LOG.isInfoEnabled()) LOG.info("Giraph job successful. Checking output qualifier.");
/** Check the results * */
Result result;
String key;
byte[] calculatedScoreByte;
HashMap expectedValues = new HashMap<String, Double>();
expectedValues.put("com.google.www", 1.3515060339386287d);
expectedValues.put("com.yahoo.www", 4.144902009567587d);
expectedValues.put("com.bing.www", 9.063893290511482d);
for (Object keyObject : expectedValues.keySet()) {
key = keyObject.toString();
result = table.get(new Get(key.getBytes()));
calculatedScoreByte = result.getValue(METADATA_BYTES, HR_BYTES);
assertNotNull(calculatedScoreByte);
assertTrue(calculatedScoreByte.length > 0);
Assert.assertEquals(
"Scores are not the same",
(Double) expectedValues.get(key),
Bytes.toDouble(calculatedScoreByte),
DELTA);
}
} finally {
if (cluster != null) {
cluster.shutdown();
}
if (zkCluster != null) {
zkCluster.shutdown();
}
// clean test files
if (fs != null) {
fs.delete(hbaseRootdir);
}
}
}